Restarting App Pool via c# using powershell script

Question

I'm trying to restart an iis app pool on a remote server. First I would like to stop the app pool however I am getting an

Cannot convert the "{ Stop-WebAppPool -Name "BaymentPool" }" value of type "System.String" to type "System.Management.Automation.ScriptBlock".

exception

public void StopAppPool() { Runspace runSpace = RunspaceFactory.CreateRunspace(); runSpace.Open(); Pipeline pipeline = runSpace.CreatePipeline(); Command invokeCmd = new Command("Invoke-Command"); invokeCmd.Parameters.Add("ComputerName","IISC02"); invokeCmd.Parameters.Add("ScriptBlock","{ Stop-WebAppPool -Name \"BaymentPool\" }"); pipeline.Commands.Add(invokeCmd); Collection<PSObject> output = pipeline.Invoke(); foreach (PSObject psObject in output) { Process process = (Process)psObject.BaseObject; Console.WriteLine("Process name: " + process.ProcessName); } }

I can't quite fathom out what I am doing wrong. I know I need to add each param separately, which I think I'm doing, however it still complains.

DevGuru · Accepted Answer · 2015-12-23 14:27:46Z

A simple solution could be:

var serverManager = ServerManager.OpenRemote("000.000.000.000"); // Ip Address of Remote server var appPool = serverManager.ApplicationPools["MyAppPool"]; if (appPool == null) return; if (appPool.State == ObjectState.Stopped) { appPool.Start(); } else { appPool.Recycle(); }

Mikael Nitell · Accepted Answer · 2015-12-23 13:18:36Z

The scriptblock parameter should be of type ScriptBlock

invokeCmd.Parameters.Add("ScriptBlock", ScriptBlock.Create("{ Stop-WebAppPool -Name \"BaymentPool\" }"));

Your code that checks result is not correct, that cast to a Process object will not work. Have a look here for examples of how to inspect the result of your invoke: http://blogs.msdn.com/b/kebab/archive/2014/04/28/executing-powershell-scripts-from-c.aspx

Great. After adding "ScriptBlock.Create(", I do not get an exception anymore, however,my app pool is not stopped.
@Kam what do you get? What is the output of the pipeline? Are you getting error messages?
Just a quick question, would i need to pass in credentials or will it use AD?

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